Post on 25-Mar-2018
Timothy Cox
Application and Technical
Support Engineer
Dynamic Ratings
Melbourne, Australia The holistic view on a single interface
platform of your power transformer
The Transformer
Cooling
System
Core
Tap changer
Coils
Tank Oil
Control
Cabinet
Bushings
Failure Statistics
Bushing Monitoring
Power Factor
Capacitance
Partial Discharge
ΔT (temp)
Partial Discharge
Operations Counters
Contact Wear
DGA
Moisture in Oil
Oil Dielectric
Partial Discharge
Leakage Reactance
Online FRA
Cooling System
Monitoring
Fan Current
Control Failure
Single Interface Platform
Cooling System
OLTC Monitoring
Alarm Contacts
DGA & Moisture
Bushings
Partial Discharge
Temperatures
Single Interface Platform
Cooling System
OLTC Monitoring
Alarm Contacts
DGA & Moisture
Bushings
Partial Discharge
Temperatures
Reversing switch monitoring
Time since reversing switch
operation
Auto reversing switch
exercise
Tap change per day
Block at limit positions
Under/Over voltage block
Over current block
Monitor 3x OLTC
Temp. delta monitor
Motor energy monitor
Motor CB trip
Power supply fail
Counter for each tap
Counter for total taps
Record tap wear by I²
More than one step alarm
Wrong direction alarm
Tap Changer Monitoring and Control
Full function AVR
Replace any voltage regulator
Remote control and settings
change
Selectable control scheme
Multi mode of parallel control
Manual, Local Auto or Remote
SCADA control
AVR with invers N or Definite
time delay mode
Voltage reduction in 2 stage
LDC – Line Drop Compensation
Over/Under voltage blocking
Over current blocking
Voltage Control
Stand alone operation
Monitor
Independent Manual
Independent Auto
Parallel operation
Static Master Follower
Dynamic Master Follower
Reverse Reactance
Circulating Current
VAR Sharing
SCADA Control
Voltage Control
Single Interface Platform
Cooling System
OLTC Monitoring
Alarm Contacts
DGA & Moisture
Bushings
Partial Discharge
Temperatures
Alarm Contacts
Buchholz gas
Conservator airbag leak
Tank oil level
OLTC oil level
Pressure relief device
Miscellaneous alarms
Etc…
Single Interface Platform
Cooling System
OLTC Monitoring
Alarm Contacts
DGA & Moisture
Bushings
Partial Discharge
Temperatures
DGA & Moisture
Interface with transformer online DGA (Calisto)
DGA data available through single system
Use data to perform advanced analytics
Water in Paper (WiP) algorithm
Dynamic Ratings patented Water in Paper (WiP) /
Transformer Moisture Model (TMM) feature:
Features ‘fuzzy logic’ algorithm developed at Transformer Life
Management institute
Uses input from any IED that measures moisture (e.g. Calisto
DGA)
Evaluates transport of moisture from oil to paper at varying
temperatures
Determines equilibrium and provides estimation of moisture in
insulation
Provides confidence measure, based on amount of data
available.
Transformer Moisture Model
Single Interface Platform
Cooling System
OLTC Monitoring
Alarm Contacts
DGA & Moisture
Bushings
Partial Discharge
Temperatures
Sensor connects to
the bushing test tap
Bushing Test Tap Sensor
Leakage current is measured from all three bushings in a
three phase system
These three vectors are summed together, with the
resultant vector being plotted on a vector diagram
This resultant vector is called the imbalance vector and
is the most important value in bushing health monitoring
Sum of Currents Method
Principal of Operation
Imbalance Vector Diagram
Ph. A
Ph. B
Ph. C
Partial Discharge Monitoring
Partial Discharge can be monitored from the
bushing test tap using the same sensor
Trending is the most powerful analysis tool
Understanding how a system is changing over
time is more valuable
Log vital information for up to 1 year
Stored in easily accessible CSV files (open in Excel)
Select which parameters to log
Select logging period (typically every 60 seconds)
Configure event based logging – e.g. log parameters for
each tap change.
Alarm log file records all alarms in sequence – useful for
understanding chain of events.
Download all logged data remotely (via SFTP/FTP)
Download all data locally (via USB automatic download)
Logging & Communication
Media for Communication
RS232 port
RS485 port
Fibre serial
Ethernet connection
Fibre 100BaseFX (ST connectors)
Copper 10/100BaseT (RJ45)
Protocols for Communication
IEC 61850
Modbus (RTU/ASCII)
DNP3.0
TCP/IP web pages, data downloads
Logging & Communication
HTTP & HTTPS (secure) - To display webpages and virtual IU.
FTP & SFTP (secure) - Upload/download files.
Telnet & SSH (secure) - Terminal connection to device.
Static / DHCP addressing - IP addressing ability.
These connections are available via copper or fibre Ethernet.
Secure protocols are default.
Logging & Communication
Temperature Monitoring
Qualitrol 509DW
LumaSMART
TMCS
OLTC Control
Eberly RegDA
TapCon
Bushing Monitoring
Doble IDD
GridSense Bushing IQ
Partial Discharge Monitoring
PD Power
PD Diagnostics
Iris
Consolidated Functionality
One Dynamic Ratings
Solution!
One manufacturer
One source for all products and sensors
One point of contact
One system to learn
One system to maintain
IED Communications
An integrated system perfectly suited to the SMART GRID
Common Problem
“How do we get the data back to
our network?”
iBridge IED Networking Solution
Our iBridge IED Networking Solution delivers a cost effective and robust networking solution for getting data from transformers and breakers to the control building.
● Affordable
● Secure
● Rapid to install
● Utilise existing cables / infrastructure
● Proven
iBridge IED Networking Solution
Installation
Simply snap inductive couplers around an existing cable (power / signal / protection) that runs between transformer and control room.
iBridge IED Networking Solution
Point to Point for quick links between 2 devices
iBridge IED Networking Solution
Please Come and Visit Us!
On display:
Transformer Management Systems
DR-E3 Series (engineered solution)
DR-C50 Series (configured solution)
Online Bushing Health and PD Monitoring
DM Series
Switchgear Monitoring
OPTImizer2
Communications
iBridge IED Networking Solution
Questions?